Demountable rim



A. L. COLE. DEMOUNTABLE mm.

APELICATION FILED OCT-1,1917

1,3?6AG41, Patented y 3, 1921.

. CGLE, OE SJBUR-NDBLE, IVL'TLSSACHUSJT S.

BEBE? TX -LBLE R1171 1,3?6,-L. Speci "ication of Letters Patent. Pnia i'mi RE- 313, 31 J21 Application -'i i-zen of the i nired Shires. 1c iding zit Com, :1

l uundine. in the conniv oi .liiidi'ilcsex and dint: of Mossuchuse nni'c invented 2,: new 1 1 Md 1 v a wH-i Ann min ihunoxinnnc in r .!1(.h.ul)t. 30213115, oi which he hillowing IS a: soc 'ihczltioui r had therein to thc uccompo h This invention :(dfiieS to dcinouniuolc rinis used in connection with vehicle wheels for carrying cushion or pneumatic tires.

The main object of in inrcntion is {o provide a demounizihlc rim of such form of construction as to facilitate the insertion and the rcniovu of a cushion or pneun'nitic tire within {he rim so that ii niini uun e. ionnt of e..orr und 1 nie is run ircd for l'hese operntions.

v of the invention 1s to prosecuring the deinounteel folly against both "k fur or the invention is "to provide :1 rim oi SiIElPiQ construction which strong and (l ii'tlbiQ.

Additional. objects of the inveniion will he more speciiicnilv described and pointed out hereina'i'ter.

The pi'ci'e red enihodin eni. i iion co ll deznouninh i ride in in of iilie coihfiiii "i. which. when :1 .Jiw i iudi "escnihie :2 ciher wiih ions in ii" (1' holding eilx'.

in the drawings iil (iilimllilllklli of cr e tionul Lion of a wheei ihcccon 2i demo-un icd in accordance wiih my cari ing e. pneumatic "truciion: fig. 2 I '\"-w on iin.

n; mounted rnu con invention shoe of ord ougitudinul l iool-zing l View in means i sea-i 3Q! ri is a perspective vie v or chimps used for hoi ing: the rim on the whcei.

d Referring in th drawings. .here is shown :1 rnn coninrr i w two circu or sections 5. we ctions b ing; suhsiu'ntiaiiy ihe sections which woind be was ired by cutting an filed fictober I, 1917.

Serial No. 194,127.

ordinary solid run longitudinaliy in the middle. Each section 5 is provided with {L i'lungc (3. :idnpicd io hold one lip 7 0'5 2); pneumatic shoe 8 und ii dmvnwzu'diy extending flange 1) on the inncr edge of each section so that when ihe two tions are secured togcthcr in o riwiulire position the flanges l0 engage cu h other. in order to suppoi-Z he body portion of each section 5, a 1L2 is arranged uiuleruenih the body portion of each section between ii; ;lI1(l the wheel feiiy, the two rings 12 being secured permanently cuch to its respective section 5 by screws 13.

In order to hold the rwo sections t0- gcthcr in assembled position the rings 12 m c or ch provided with a pinriility of recesses arranged at regular intervals, the

two rings heiugz drawn together by bolts 1% and nuts; 16. the head of the l oit {on hcing lociiicd within the rec heads of the nuts may each be provided with 2 sloi I] so that the two sections may be drawn ino engagement with each other by turning i'hc nut with ii suitable Cool.

To hold the rim in position upon the Wheel iclly 2% I provide suitable chimps 22 (see Fig. 4), the upper surfaces of which engage the lower hlil'filCCS of the sections 5 and the lower portions of the clamps being ouch pro- .vided with :1 hoieZ-ito receive a boll; 26 secured in the wheel felly 20, the two ends of the bolt 2C being threaded to receive nuts 28. The inner ide of each clamp is provided with u rectangular cxiension 30 adapted to enter the receeS 153 when the chimp is in positio if desired the whcei foil .20 may. be provided with an outer covering of metal made in the form or" two rings 32 and 34 i -ohnped in cros -scction. these two rings being of such :especfive dimensions the; the joint where they meci; isoii' ceni'er on the surface oiihe trend of the i011 in order nou to interfere with the drnsz'ing together of the two sections 5.

In the use of my rim he pneumatic shoe 8. with its inner tulse, the hitter not being shown in the drawings. is arranged with 'lhe lip 'i' inclosed within the two flanges 6 of 116 sections 5. The hoiis 14- are then arranged in the holes tl'irough the rings 12 and the firing-es 10 and the nut L6 is screwed on to she end and tightened up until the two flanges 10 are in engagemeni with each other. As :1 general rule this is accomiished with ver' little difficult-v as the shoe p J a is mounted on the rim while in a deflated condition. In case any ditiiculty is met, drawing bolts may be used in the first instance for drawing the two portions of the rim together and attenthat has been accomplished, the drawings bolts may be removed one by one and the bolts let and nuts 16 substituted therct'or and tightened. up; In order to prevent the inner tube being caught or pinched between the two flanges ll) during this operation, a strip 36 of any suitable material may be inserted between the shoe and the rim section 5, this strip being of sufiicient stiffness to prevent pinching. After the rim has been thus secured. the shoe may be inflated and is then ready for use when desired.

In mounting the rim with the shoe on the wheel telly 20 all that is necessary is to place the rim in position on the wheel telly then insert the clamps, place the nuts 28 on the bolts 26 and tighten them up. It is. of course, understood that the wheel telly and the sections 5 are provided with a suitable hole to receive the valve stem on the inner tube. It is unnecessary to show this in the: drawings because it would be obvious to anyone skilled in the art.

The removal of the 'demountable rim from the wheel telly and the method of separation ot' the rim sections 5 in order to rename the shoe are perfectly obvious from the foregoing description.

-It will be apparent that by providing what might be termed a split dcn'iountable rim. I have inade the operations 01 setting a shoe within the rim one of comparative simplicity and one requiring no expenditure of strength and no spcaal apparatus. In many of the deniountable rims in use at the present time, the rims are split transversely and in order to set a shoe it is necessary to bend one ot the ends to .tllCl the center by special apparatus so that the shoe may be removed or may be inserted. I have avoided, by my construction, the necessity for any special etfort or special apparatus for the operations of setting the shoe in or removing it from the rim.

It is further to be observed that the rim is secured against longitudinal movement on the wheel. fell under strain by the fact that the clamps are provided with portions which interlock with the demountable rim and as the clamps are fixed in position by thebolts 26 on the wheel telly, no longitudinal movement is possible. It may further be observed that the demountable rim is supported at all points transversely from one side to the other.

It is to be understood that my invention may be embodied in other forms of construction than that herein shown and described and the invention is claimed broadly except: where specifically limited in the following -laim.

What. I claim is A demonntable rim comprising two sections of like construction, each of said sections having a tread portion. an outer tlan e adapted to receive and inclose one lip oi." a shoe and an inner depending flange perpendicular to said tread portion. a ring rec- 'tai'igular in cross-secticm secured to said 'tread portion and fitting within the angle made by said tread portion and said de pending flange tor supporting the tread portion of said section. said inner flange and said supporting ring being adapted to engage the periphery of the wheel when said section is mounted thereon and means for scci-iring said two sections in an assembled position be't'ore mounting on the wheel.

In witness whercol I hereunto my hand this nineteenth day of September. 191i.

ALBERI L. COLE. 

